Pith Number

pith:JVMACPLH

pith:2015:JVMACPLHKUTWR2L75HPRPDAPJI

not attested not anchored not stored refs pending

The oldest example of compound interest in Sumer: Seventh power of four-thirds

Kazuo Muroi

arxiv:1510.00330 v1 · 2015-09-17 · math.HO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JVMACPLHKUTWR2L75HPRPDAPJI}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:31:19.577109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d58013d67552768e97fe9df178c0f4a2b3e97e7efa52c745168e8498eeee258

Aliases

arxiv: 1510.00330 · arxiv_version: 1510.00330v1 · doi: 10.48550/arxiv.1510.00330 · pith_short_12: JVMACPLHKUTW · pith_short_16: JVMACPLHKUTWR2L7 · pith_short_8: JVMACPLH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/JVMACPLHKUTWR2L75HPRPDAPJI \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 4d58013d67552768e97fe9df178c0f4a2b3e97e7efa52c745168e8498eeee258

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0f6f5045dcd7d8d990f66c405bcd353b555cc6cdcba16325dfe8b99555604ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2015-09-17T01:02:41Z",
    "title_canon_sha256": "b203c875c70483e80b5814f79e27d1c1e43e1b92da6aa668016b7f138e1e89bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.00330",
    "kind": "arxiv",
    "version": 1
  }
}